Updated: Feb 17, 2020


PINATA is a Chrome browser plug-in which detects when users are having pointing difficulties, notifies them, and offer to adapt their browsing experience.

Research Areas

Design; AI; Accessibility.

My Involvement

I developed the Chrome plug-in using in Javascript.

I set up a PHP server to handle storing users' pointing data and run them through a Weka classifier to identify pointing difficulty.

I designed three different in-browser notification designs with varying degrees of interruptibility and context.


University of Maryland Baltimore County (UMBC).


  • Martin-Hammond, A., Hamidi, F., Bhalerao, T., Ortega, C., Ali, A., Hornback, C., Means, C., Hurst, A. (2018). Designing an Adaptive Web Navigation Interface for Users with Variable Pointing Performance. W4A 2018.

  • Martin-Hammond, A., Hamidi, F., Bhalerao, T., Ali, A., Hornback, C., Means, C., Hurst, A. (2017). The Participatory Design of an Adaptive Interface to Support Users with Changing Pointing Ability. Proceedings of ACM ASSETS 2017.

  • Martin-Hammond, A., Ali, A., Means, C., Hornback, C., Hurst, A.(2016). Supporting Awareness of Pointing Behavior among Diverse Groups. Proceedings of Pervasive Health 2016.

  • Martin-Hammond, A., Ali, A., Hornback, C., Hurst, A. (2015). Understanding Design Considerations for Adaptive User Interfaces for Accessible Pointing with Older and Younger Adults. Proceedings of W4A 2015. (Best paper nomination)


#Projects #All #Accessibility #AI